Adjustable lamp-holding device



Patented Jan. 3, I899.

M. M. PARVIN. ADJUSTABLE LAMP- HOLDING DEVICE.

(Application filed Mar. 12, 1898.)

(No Model.)

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MARTHA M. PARVIN, OF MUSCATINE, IOlVA.

ADJUSTABLE LAM P-HOLDING DEVICE.

SPECIFICATION forming part of Letters Patent No. 617,179, dated January3, 1899.

Application filcrl March 12, 1898.

To all whom it may concern:

Be it known that I, MARTHA M. PARVIN, of Muscatine, in the county ofMuscatine and State of Iowa, have invented certain new and usefulImprovements in Adjustable Lamp- Holding Devices; and I hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, which form part ofthis specification.

This invention is an improvement in adj ustable lamp holding devices forsewing machines. Its primary object is to provide an improved adjustablelamp holding attachment for sewing-machines, whereby the operator canquickly adjust the lamp to any position desired, the same being retainedin its adjusted position with perfect safety.

A secondary object is to provide a self-adjusting holder for lamps ofvarious kinds.

Another object of the invention is to provide an adjustable reflectorattachment in combination with the lamp to increase the efficiencythereof.

The invention therefore consists in the combinations and constructionsof parts hereinafter described and claimed and illustrated in theaccompanying drawings, in which- Figure 1 is a perspective view of partof a machine with my improved attachment applied thereto. Fig. 2 is anenlarged perspective View of the attachment as applied to the machine.Fig. 3 is a transverse sectional view, and Fig. 4; is a detail.

A designates the top of an ordinary machinetable, and to the rear sideof this table is hinged a plate B, which may be of metal, wood, or othersuitable material. This plate can be lowered, as shown in dotted linesin Fig. 3, when the lamp is not to be used; but when the lamp is to beused it is raised and is held flush with the top of table A by means ofbuttons or bolts a, as indicated in Fig. 3, which when turned in onedirection Will underlie the table A and when turned in another directionwill sustain the plate in the desired position. The plate is formed witha longitudinal slot 1;.

The lamp -holder consists of a number of spring-pieces C, four beingshown, which are attached at their lower ends to a depending bolt D, bywhich the holder can be secured $erial No. 673,604. (No model.)

to any suitable support, and in the present instance this bolt may bepassed through the slot 1) of the plate B and secured bya thumbnut d onits lower end, allowingthe holder to be readily adjusted to any positiondesired longitudinally of the plate. The pieces G ex tend radially andhorizontally outward from bolt D for a short distance and then are bentupward and slightly inward and connected to an annulus C a shortdistance-above the plate. These pieces also then extend above theannulus and are bent outwardly and then inwardly, their upper endstending to con verge. The upper ends may be finished in any desired orornamental manner and are shown as curved. The portions of the pieces 0above annulus 0 form spring-clasps c, which are adapted to grasp thebowl of a lamp and securely hold the same, as indicated in the drawings.This holder is adapted to various forms and sizes of lamps and will holdthe same securely.

With lamps having stands the stand can pass through annulus O and restupon the lower parts of the pieces 0, while the globe is grasped by theclasps c, as indicated.

The simplicity and utility of this holder will be obvious from thedrawings.

I also provide an adjustable reflector at tachment which can be held inthe holder, and this comprises a band E, having one end bent to encirclethe neck-piece of a lamp and upright by friction or which may beprovided with the adj Listing-screw f, as shown. To this piece f isattached a reflector G of metal or other suitable material. It isobvious that the reflector can be easily adjusted to any position aroundthe neck of the lamp and that the lamp can be readily adjusted along thelength 01": the table A.

The lamp-holder might be firmly fixed in any position where it isdesired to secure a lamp, the lamp being readily removable there from.

As applied to a machine the device is particularly useful for those whohave to do night-work, as the lamp is held securely behind the machineand at the same time can be adjusted to any position desired along thelength of the table which will best suit the character of the work beingdone and give the best light thereon.

Having thus described my invention, what Iclaim as new, and desire tosecure by Letters Patent, is-

1. In a lamp-holding attachment for sewing-machines, the combination ofthe longitudinally-slotted plate attached to the top of the machine;with a lamp-holder, consisting of a series of spring-strips united attheir lower ends to a threaded bolt and having upwardly-proj ecti n gportions bent substantially as described so as to clasp the globe of alamp; said bolt depending through the slot in the plate so that theholder can be adjusted longitudinally of the machine=top, and a nut onsaid bolt by which the holder is detachably and adj ustabl y secured tothe plate.

2. In a lamp-holding attachment for sewing-machines, the combination ofthe longinected intermediate their ends to an annu= lus, and havingprojecting portions above their annulus bent so as to clasp the globe ofa lamp; said bolt depending through the slot in the plate, by which theholder is detachably and adj ustably secured thereto, substantially asdescribed.

3. The herein-described adjustable lampsupport for sewing-machinesconsisting of the longitudinally-slotted plate B hinged to the table-topof the machine, and means for holding said plate in line with the top ofthe machine; with the lamp-holder consisting of radial pieces 0connected at their lower ends to a bolt D projecting through the slot inthe plate, and having a nut d on its end below the plate, said stripsbeing also bent upwardly and connected to an annulus 0 above the plateand extending above said annulus, the portions of the spring above saidannulus being bent into clasps 0 adapted to clasp and hold the lamp, forthe purpose and substantially as described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

MARTHA M. PARVIN.

. In presence of- J. R. FITZGERALD, N. ROSENBERGER.

